radon mitigation system 4
https://theradonrentalpropertiesworld.evercolumn.com/posts/a-tenant-s-guide-to-understanding-radon-in-rental-properties
A radon mitigation system draws soil gas from beneath your home's foundation and vents it safely above the roofline, preventing radioactive radon from seeping into your living spaces. The setup typically includes a sealed suction pit, a quiet fan for continuous operation, and a pipe routing the gas outdoors. After installation, a follow-up test should confirm radon levels drop below the EPA action guideline of 4 pCi/L. Properly designed and maintained, such a system can last 20 years or more wi…